#!/bin/bash
 
# Wonder Shaper
# please read the README before filling out these values
#
# Set the following values to somewhat less than your actual download
# and uplink speed. In kilobits. Also set the device that is to be shaped.
DOWNLINK=470
UPLINK=120
DEV=ppp0
 
# low priority OUTGOING traffic - you can leave this blank if you want
# low priority source netmasks
NOPRIOHOSTSRC=80
 
# low priority destination netmasks
NOPRIOHOSTDST=
 
# low priority source ports
NOPRIOPORTSRC=
 
# low priority destination ports
NOPRIOPORTDST=
 
 
#########################################################
 
if [ "$1" = "status" ]
then
        tc -s qdisc ls dev $DEV
        tc -s class ls dev $DEV
        exit
fi
 
 
# clean existing down- and uplink qdiscs, hide errors
tc qdisc del dev $DEV root    2> /dev/null > /dev/null
tc qdisc del dev $DEV ingress 2> /dev/null > /dev/null
 
if [ "$1" = "stop" ]
then
        exit
fi
 
###### uplink
 
# install root CBQ
 
tc qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth 10mbit
 
# shape everything at $UPLINK speed - this prevents huge queues in your
# DSL modem which destroy latency:
# main class
 
tc class add dev $DEV parent 1: classid 1:1 cbq rate ${UPLINK}kbit \
allot 1500 prio 5 bounded isolated
 
# high prio class 1:10:
 
tc class add dev $DEV parent 1:1 classid 1:10 cbq rate ${UPLINK}kbit \
   allot 1600 prio 1 avpkt 1000
 
# bulk and default class 1:20 - gets slightly less traffic,
#  and a lower priority:
 
tc class add dev $DEV parent 1:1 classid 1:20 cbq rate $[9*$UPLINK/10]kbit \
   allot 1600 prio 2 avpkt 1000
 
# 'traffic we hate'
 
tc class add dev $DEV parent 1:1 classid 1:30 cbq rate $[8*$UPLINK/10]kbit \
   allot 1600 prio 2 avpkt 1000
 
# all get Stochastic Fairness:
tc qdisc add dev $DEV parent 1:10 handle 10: sfq perturb 10
tc qdisc add dev $DEV parent 1:20 handle 20: sfq perturb 10
tc qdisc add dev $DEV parent 1:30 handle 30: sfq perturb 10
 
# start filters
# TOS Minimum Delay (ssh, NOT scp) in 1:10:
tc filter add dev $DEV parent 1:0 protocol ip prio 10 u32 \
      match ip tos 0x10 0xff  flowid 1:10
 
# ICMP (ip protocol 1) in the interactive class 1:10 so we
# can do measurements & impress our friends:
tc filter add dev $DEV parent 1:0 protocol ip prio 11 u32 \
        match ip protocol 1 0xff flowid 1:10
 
# prioritize small packets (<64 bytes)
 
tc filter add dev $DEV parent 1: protocol ip prio 12 u32 \
   match ip protocol 6 0xff \
   match u8 0x05 0x0f at 0 \
   match u16 0x0000 0xffc0 at 2 \
   flowid 1:10
 
 
# some traffic however suffers a worse fate
for a in $NOPRIOPORTDST
do
        tc filter add dev $DEV parent 1: protocol ip prio 14 u32 \
           match ip dport $a 0xffff flowid 1:30
done
 
for a in $NOPRIOPORTSRC
do
        tc filter add dev $DEV parent 1: protocol ip prio 15 u32 \
           match ip sport $a 0xffff flowid 1:30
done
 
for a in $NOPRIOHOSTSRC
do
        tc filter add dev $DEV parent 1: protocol ip prio 16 u32 \
           match ip src $a flowid 1:30
done
 
for a in $NOPRIOHOSTDST
do
        tc filter add dev $DEV parent 1: protocol ip prio 17 u32 \
           match ip dst $a flowid 1:30
done
 
# rest is 'non-interactive' ie 'bulk' and ends up in 1:20
 
tc filter add dev $DEV parent 1: protocol ip prio 18 u32 \
   match ip dst 0.0.0.0/0 flowid 1:20
 
 
########## downlink #############
# slow downloads down to somewhat less than the real speed  to prevent
# queuing at our ISP. Tune to see how high you can set it.
# ISPs tend to have *huge* queues to make sure big downloads are fast
#
# attach ingress policer:
 
tc qdisc add dev $DEV handle ffff: ingress
 
# filter *everything* to it (0.0.0.0/0), drop everything that's
# coming in too fast:
 
tc filter add dev $DEV parent ffff: protocol ip prio 50 u32 match ip src \
  0.0.0.0/0 police rate ${DOWNLINK}kbit burst 10k drop flowid :1

sch_ingress             1344   0  (autoclean)
cls_u32                 4188   0  (autoclean)
sch_sfq                 3424   0  (autoclean)
sch_cbq                10880   0  (autoclean)

serveur:/usr/src# apt-cache show iproute
Package: iproute
Priority: extra
Section: net
Installed-Size: 817
Maintainer: Juan Cespedes <cespedes@debian.org>
Architecture: i386
Version: 20010824-8
Depends: libc6 (>= 2.2.4-4)
Filename: pool/main/i/iproute/iproute_20010824-8_i386.deb
Size: 517870
MD5sum: 25eb4de53e0d520ca3862bb6989a2545
Description: Professional tools to control the networking in Linux kernels
 This is `iproute', the professional set of tools to control the
 networking behavior in kernels 2.2.x and later.
 .
 At least, the options CONFIG_NETLINK and CONFIG_RTNETLINK must
 be compiled in the running kernel

serveur:~# tc -V
tc utility, iproute2-ss010824

#!/bin/bash
 
# Wonder Shaper
# please read the README before filling out these values
#
# Set the following values to somewhat less than your actual download
# and uplink speed. In kilobits. Also set the device that is to be shaped.
DOWNLINK=470
UPLINK=120
DEV=ppp0
 
# low priority OUTGOING traffic - you can leave this blank if you want
# low priority source netmasks
NOPRIOHOSTSRC=
 
# low priority destination netmasks
NOPRIOHOSTDST=
 
# low priority source ports
NOPRIOPORTSRC=
 
# low priority destination ports
NOPRIOPORTDST=
 
 
#########################################################
 
if [ "$1" = "status" ]
then
        tc -s qdisc ls dev $DEV
        tc -s class ls dev $DEV
        exit
fi
 
 
# clean existing down- and uplink qdiscs, hide errors
tc qdisc del dev $DEV root    2> /dev/null > /dev/null
tc qdisc del dev $DEV ingress 2> /dev/null > /dev/null
 
if [ "$1" = "stop" ]
then
        exit
fi
 
###### uplink
 
# install root CBQ
 
tc qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth 10mbit
 
# shape everything at $UPLINK speed - this prevents huge queues in your
# DSL modem which destroy latency:
# main class
 
tc class add dev $DEV parent 1: classid 1:1 cbq rate ${UPLINK}kbit \
allot 1500 prio 5 bounded isolated
 
# high prio class 1:10:
 
tc class add dev $DEV parent 1:1 classid 1:10 cbq rate ${UPLINK}kbit \
   allot 1600 prio 1 avpkt 1000
 
# bulk and default class 1:20 - gets slightly less traffic,
#  and a lower priority:
 
tc class add dev $DEV parent 1:1 classid 1:20 cbq rate $[9*$UPLINK/10]kbit \
   allot 1600 prio 2 avpkt 1000
 
# 'traffic we hate'
 
tc class add dev $DEV parent 1:1 classid 1:30 cbq rate $[8*$UPLINK/10]kbit \
   allot 1600 prio 2 avpkt 1000
 
# all get Stochastic Fairness:
tc qdisc add dev $DEV parent 1:10 handle 10: sfq perturb 10
tc qdisc add dev $DEV parent 1:20 handle 20: sfq perturb 10
tc qdisc add dev $DEV parent 1:30 handle 30: sfq perturb 10
 
# start filters
# TOS Minimum Delay (ssh, NOT scp) in 1:10:
tc filter add dev $DEV parent 1:0 protocol ip prio 10 u32 \
      match ip tos 0x10 0xff  flowid 1:10
 
# ICMP (ip protocol 1) in the interactive class 1:10 so we
# can do measurements & impress our friends:
tc filter add dev $DEV parent 1:0 protocol ip prio 11 u32 \
        match ip protocol 1 0xff flowid 1:10
 
# prioritize small packets (<64 bytes)
 
tc filter add dev $DEV parent 1: protocol ip prio 12 u32 \
   match ip protocol 6 0xff \
   match u8 0x05 0x0f at 0 \
   match u16 0x0000 0xffc0 at 2 \
   flowid 1:10
 
 
# some traffic however suffers a worse fate
for a in $NOPRIOPORTDST
do
        tc filter add dev $DEV parent 1: protocol ip prio 14 u32 \
           match ip dport $a 0xffff flowid 1:30
done
 
for a in $NOPRIOPORTSRC
do
        tc filter add dev $DEV parent 1: protocol ip prio 15 u32 \
           match ip sport $a 0xffff flowid 1:30
done
 
for a in $NOPRIOHOSTSRC
do
        tc filter add dev $DEV parent 1: protocol ip prio 16 u32 \
           match ip src $a flowid 1:30
done
 
for a in $NOPRIOHOSTDST
do
        tc filter add dev $DEV parent 1: protocol ip prio 17 u32 \
           match ip dst $a flowid 1:30
done
 
# rest is 'non-interactive' ie 'bulk' and ends up in 1:20
 
tc filter add dev $DEV parent 1: protocol ip prio 18 u32 \
   match ip dst 0.0.0.0/0 flowid 1:20
 
 
########## downlink #############
# slow downloads down to somewhat less than the real speed  to prevent
# queuing at our ISP. Tune to see how high you can set it.
# ISPs tend to have *huge* queues to make sure big downloads are fast
#
# attach ingress policer:
 
tc qdisc add dev $DEV handle ffff: ingress
 
# filter *everything* to it (0.0.0.0/0), drop everything that's
# coming in too fast:
 
tc filter add dev $DEV parent ffff: protocol ip prio 50 u32 match ip src \
  0.0.0.0/0 police rate ${DOWNLINK}kbit burst 10k drop flowid :1